Microsoft: Critical Security Issue Found in Windows Notepad
ID: 5c8e7b04-f55e-5aea-8468-0e36f2edf045
STIX ID: report--5c8e7b04-f55e-5aea-8468-0e36f2edf045
Feed Name: TechRepublic Security
Threat Score
Microsoft patched CVE-2026-20841, a high-severity remote code execution vulnerability in the modern Notepad app's Markdown/link handling: a specially crafted .md file and a clicked link can execute code with the user's privileges. Exploitation requires user interaction, the legacy Notepad is unaffected, a patch was released in February 2026, and proof-of-concept code exists though no widespread exploitation has been reported.
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